Mt. Vernon, the home of George Washington is worth a visit. The estate is in a gorgeous setting. Unfortunately, it was swarmed with school children when I was there so I didn’t get to see and enjoy as I might have liked. If you are going, I’d recommend you call and inquire as to whether there are days that are better or worse in terms of crowds and school buses. Apparently we picked a festival day marketed to school kids.

I’d recommend you rent a car and drive from Washington. We took a Grayline tour and that was more expensive than if we’d have rented. Plus, I really would like to spend some time bumping around old-town Alexandria. It looked like a place I’d have enjoyed.

Particularly recommend you visit Christ Episcopal Church in Alexandria. It’s worth the visit. Very interesting in terms of architecture and history.